The pyramid of Kukulkan at Chichen Itza is the most mpressive structure on this Maya site. The 79 foot tall pyramid was built over an earlier structure. The most recent one was constructed during the second period, Maya Toltex, occupation sometime between A.D. 950
and A.D. 1200. About 60% of this pyramid has been restored. During the equinox the sun casts a shadow that appears to be a snake slithering down the pyramid.